Overview
●The SC16C754B is a quad Universal Asynchronous Receiver/Transmitter (UART) with 64-byte FIFOs, automatic hardware/software flow control, and data rates up to 5 Mbit/s (3.3 V and 5 V). The SC16C754B offers enhanced features. It has a Transmission Control Register (TCR) that stores receiver FIFO threshold levels to start/stop transmission during hardware and software flow control. With the FIFO Ready (FIFO Rdy) register, the software gets the status of TXRDY/RXRDYfor all four ports in one access. On-chip status registers provide the user with error indications, operational status, and modem interface control. System interrupts may be tailored to meet user requirements. An internal loopback capability allows on-board diagnostics.
●The UART transmits data, sent to it over the peripheral 8-bit bus, on the TX signal and receives characters on the RX signal. Characters can be programmed to be 5, 6, 7, or 8 bits. The UART has a 64-byte receive FIFO and transmit FIFO and can be programmed to interrupt at different trigger levels. The UART generates its own desired baud rate based upon a programmable divisor and its input clock. It can transmit even, odd, or no parity and 1, 1.5, or 2 stop bits. The receiver can detect break, idle, or framing errors, FIFO overflow, and parity errors. The transmitter can detect FIFO underflow. The UART also contains a software interface for modem control operations, and has software flow control and hardware flow control capabilities.
●The SC16C754B is available in plastic LQFP64, LQFP80 and PLCC68 packages.
●MoreLess
●## Features
● 4 channel UART
● 5 V, 3.3 V and 2.5 V operation
● Pin compatible with SC16C654IA68, TL16C754, and SC16C554IA68 with additional enhancements, and software compatible with TL16C754
● Up to 5 Mbit/s data rate (at 3.3 V and 5 V; at 2.5 V maximum data rate is 3 Mbit/s)
● 5 V tolerant on input only pins
● 64-byte transmit FIFO
● 64-byte receive FIFO with error flags
● Industrial temperature range (-40 Cel to +85 Cel)
● Programmable and selectable transmit and receive FIFO trigger levels for DMA and interrupt generation
● Software (Xon/Xoff)/hardware (RTS/CTS) flow control
● Programmable Xon/Xoff characters
● Programmable auto-RTS and auto-CTS
● Optional data flow resume by Xon any character
● DMA signalling capability for both received and transmitted data
● Supports 5 V, 3.3 V and 2.5 V operation
● Software selectable baud rate generator
● Prescaler provides additional divide-by-4 function
● Fast data bus access time
● Programmable Sleep mode
● Programmable serial interface characteristics
● 5, 6, 7, or 8-bit characters
● Even, odd, or no-parity bit generation and detection
● 1, 1.5, or 2 stop bit generation
● False start bit detection
● Complete status reporting capabilities in both normal and Sleep mode
● Line break generation and detection
● Internal test and loopback capabilities
● Fully prioritized interrupt system controls
● Modem control functions (CTS, RTS, DSR, DTR, RI, and CD)
● Sleep mode
●## Features
